I put red peppers, tomatoes, onion and garlic to roast blend with passata and veg stock until it looks about right - I may put a splash of something in such as red wine Oh I usually sprinkle sugar over veg before roasting then I put rice or that small oval pasta in and simmer DC love this
Chop a red pepper, fry off with a bit of garlic and chilli (optional). Add a can of chopped tomatoes. Add a pint of stock (always chicken for me, I don't like veg stock). Simmer for 20 minutes. Blitz with stick blender.
You can chuck in extra bits, potatoes, onion, cream at the end if you like.